Add SAVE_CONFIG command to global control interface

This iterates through all interfaces and saves configuration file
updates for each interface that allows it (update_config=1).

Signed-hostap: Jouni Malinen <j@w1.fi>

diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index c27325c92edeaa3a8355ffff4c18b0fba2a8de9c..1a42ae316b2e9fc2e42cb18f4843c2766fd921f5 100644 (file)
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -6011,6 +6011,31 @@ static int wpas_global_ctrl_iface_set(struct wpa_global *global, char *cmd)
 }
 
 
+#ifndef CONFIG_NO_CONFIG_WRITE
+static int wpas_global_ctrl_iface_save_config(struct wpa_global *global)
+{
+       int ret = 0;
+       struct wpa_supplicant *wpa_s;
+
+       for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
+               if (!wpa_s->conf->update_config) {
+                       wpa_dbg(wpa_s, MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Not allowed to update configuration (update_config=0)");
+                       continue;
+               }
+
+               if (wpa_config_write(wpa_s->confname, wpa_s->conf)) {
+                       wpa_dbg(wpa_s, MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Failed to update configuration");
+                       ret = 1;
+               } else {
+                       wpa_dbg(wpa_s, MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Configuration updated");
+               }
+       }
+
+       return ret;
+}
+#endif /* CONFIG_NO_CONFIG_WRITE */
+
+
 char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global,
                                                char *buf, size_t *resp_len)
 {
@@ -6071,6 +6096,11 @@ char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global,
        } else if (os_strncmp(buf, "SET ", 4) == 0) {
                if (wpas_global_ctrl_iface_set(global, buf + 4))
                        reply_len = -1;
+#ifndef CONFIG_NO_CONFIG_WRITE
+       } else if (os_strcmp(buf, "SAVE_CONFIG") == 0) {
+               if (wpas_global_ctrl_iface_save_config(global))
+                       reply_len = -1;
+#endif /* CONFIG_NO_CONFIG_WRITE */
        } else {
                os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
                reply_len = 16;